A steel pipe inner wall polishing device

Abstract

This utility model discloses a steel pipe inner wall polishing device, relating to the field of steel pipe polishing technology. It includes a grinding table with a turntable movably mounted on its surface for placing steel pipes. A support frame is mounted on one side of the grinding table, and a lifting seat is slidably mounted on one side of the support frame. The top end face of the lifting seat has two sets of transverse sliding grooves and oblique grooves symmetrically arranged. When polishing steel pipes of different inner diameters, the operator can change the position of the traction seat along the transverse sliding grooves according to actual needs, thereby causing the rotating shaft one to move along the direction of the movable groove, thus changing the distance between the polishing discs. The tensioning wheel can move with the rotating shaft two within the oblique groove to adjust the tension of the transmission belt. This ensures that when the positions of the rotating shaft one and the pulley one change, the transmission belt can always stably drive the pulley one to rotate. The device is more flexible and versatile, bringing great convenience to the polishing operation of the inner wall of steel pipes.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe polishing technology, specifically to a steel pipe inner wall polishing device. Background Technology

[0002] Steel pipes are hollow tubular products made primarily of steel. They possess characteristics such as high strength, pressure resistance, and corrosion resistance, and are widely used in fields such as construction, petroleum, chemical, machinery, energy, and transportation.

[0003] In the process of steel pipe production and processing, in order to ensure the consistency and smoothness of the inner diameter of the steel pipe, workers often use polishing devices to grind and polish the inner wall of the cut steel pipe sections. Most existing steel pipe inner wall polishing devices have fixed polishing discs, which can only polish the inner wall of steel pipes of specific specifications. It is difficult to make adaptive adjustments according to the inner diameter of the steel pipe, resulting in poor device versatility and causing certain inconvenience to the polishing operation.

[0004] In summary, most existing steel pipe inner wall polishing devices suffer from problems such as fixed polishing disc positions, limiting their ability to polish only the inner walls of steel pipes of specific specifications, making it difficult to adapt to different inner diameters of the steel pipes, and resulting in poor device versatility. Utility Model Content

[0005] The purpose of this utility model is to provide a steel pipe inner wall polishing device to solve the technical problem that most existing steel pipe inner wall polishing devices have fixed polishing disc positions, which can only polish the inner wall of steel pipes of specific specifications, making it difficult to adapt to the inner diameter of the steel pipe and resulting in poor device versatility.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0007] A steel pipe inner wall polishing device includes a polishing table.

[0008] The grinding table has a turntable for placing steel pipes that is movably mounted on its surface. A support frame is provided on one side of the grinding table, and a lifting seat is slidably mounted on one side of the support frame. The top end face of the lifting seat has two sets of transverse sliding grooves and an oblique groove symmetrically opened, with the oblique groove located in front of the transverse sliding groove. The top end face of the lifting seat has a movable groove located between the transverse sliding grooves. The two ends of the transverse sliding grooves are movably connected to a traction seat by bolts. A rotating shaft is rotatably mounted inside the traction seat, and the top end of the rotating shaft is inserted through the movable groove. A pulley is connected to the top end of the rotating shaft. A second rotating shaft is movably mounted inside the oblique groove, and a tensioning wheel matching the first pulley is mounted at the top end of the second rotating shaft. A double-drive pulley matching the first pulley and the tensioning wheel is rotatably mounted on the top of the lifting seat. Two sets of transmission belts are provided on the outer sides of the double-drive pulley, the first pulley, and the tensioning wheel, and the transmission belts are symmetrically distributed on the double-drive pulley.

[0009] Preferably, the turntable is a hollow frustum, and the bottom end of the first rotating shaft is provided with a polishing disc for grinding steel pipes.

[0010] Preferably, the top of the turntable is provided with three sets of equally spaced limiting grooves, and a support column is provided in the center of the turntable.

[0011] Preferably, the limiting slide groove is provided with a stepped inner expansion platform that is slidably arranged inside, and the turntable is provided with a mounting base that matches the limiting slide groove on its outer side.

[0012] Preferably, the inner side of the mounting base is threaded with a lead screw, and one end of the lead screw passes through and is rotatably connected to the inner expansion platform of the step and the limiting slide groove. The lead screw and the inner expansion platform of the step are threadedly connected.

[0013] Preferably, one side of the support frame is provided with a guide rail for guiding and limiting the movement of the lifting seat.

[0014] Preferably, the top of the support frame is provided with a cylinder for driving the lifting seat to move up and down.

[0015] Preferably, the end of the lifting seat away from the pulley is provided with an inverted plate, and the inverted plate is rotatably connected to the dual drive pulley.

[0016] Preferably, the top of the lifting seat is provided with a protective cover for protecting the pulley and the tensioning wheel.

[0017] Preferably, the top of the C-shaped plate is provided with a servo motor one for driving the dual drive pulleys to rotate, and the interior of the grinding table is provided with a servo motor two for driving the turntable to rotate.

[0018] The beneficial effects of this utility model are:

[0019] 1. In this utility model, when polishing steel pipes with different inner diameters, the operator can change the position of the traction seat along the transverse slide according to actual needs, so that the first rotating shaft moves along the direction of the movable groove, thereby changing the distance between the polishing discs. The tension wheel can move with the second rotating shaft in the inclined groove to adjust the tension of the transmission belt. This ensures that when the position of the first rotating shaft and the first pulley changes, the transmission belt can always stably drive the first pulley to rotate. The device is more flexible and more versatile, bringing great convenience to the polishing operation of the inner wall of steel pipes.

[0020] 2. In this utility model, the movement of the stepped inner expansion platform can adapt to steel pipes with different inner diameters, and can form a stable fixation for steel pipes with different inner diameters. The transmission belts symmetrically distributed on the outer side of the double drive pulleys can simultaneously drive the two sets of pulleys to rotate, realize the transmission of power, and then drive the rotating shaft and polishing disc to rotate, further simplifying the transmission structure of the device. The structure of the device is simpler and the size is smaller. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is one of the overall three-dimensional schematic diagrams of the device in this utility model;

[0023] Figure 2 This is the second overall three-dimensional schematic diagram of the device in this utility model;

[0024] Figure 3 This is the third overall three-dimensional schematic diagram of the device in this utility model;

[0025] Figure 4 This is a schematic diagram of the cooperation between the pulley and the double drive pulley in this utility model.

[0026] In the diagram: 1. Grinding table; 2. Turntable; 3. Limiting slide groove; 4. Support column; 5. Stepped inner expansion platform; 6. Mounting seat; 7. Lead screw; 8. Support frame; 9. Guide slide rail; 10. Lifting seat; 11. Cylinder; 12. Transverse slide groove; 13. Inclined groove; 14. Movable groove; 15. Traction seat; 16. Rotating shaft one; 17. Pulley one; 18. Rotating shaft two; 19. Tensioning wheel; 20. C-shaped plate; 21. Double drive pulley; 22. Transmission belt; 23. Protective cover; 24. Servo motor one; 25. Servo motor two. Detailed Implementation

[0027] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0028] like Figure 1-4As shown, a steel pipe inner wall polishing device includes a grinding table 1. A turntable 2 for placing steel pipes is movably mounted on the table surface of the grinding table 1. The turntable 2 is a hollow frustum. Three sets of equally spaced limiting grooves 3 are opened on the top of the turntable 2. A support column 4 is set in the center of the turntable 2. A stepped inner expansion platform 5 is slidably mounted inside the limiting groove 3. A mounting base 6 matching the limiting groove 3 is set on the outer side of the turntable 2. A screw rod 7 is threadedly connected to the inner side of the mounting base 6, and one end of the screw rod 7 passes through and is rotatably connected to the stepped inner expansion platform 5 and the limiting groove 3. The screw rod 7 and the stepped inner expansion platform 5 are threadedly connected. A support frame 8 is set on one side of the table surface of the grinding table 1. A lifting seat 10 is slidably mounted on one side of the support frame 8. A support for adjusting the lifting seat is set on one side of the support frame 8. The movement of 10 forms a guide rail 9 for guiding and limiting. The top of the support frame 8 is equipped with a cylinder 11 for driving the lifting seat 10 to rise and fall. The top end face of the lifting seat 10 is symmetrically provided with two sets of transverse sliding grooves 12 and inclined grooves 13, with the inclined grooves 13 located in front of the transverse sliding grooves 12. The top end face of the lifting seat 10 is provided with a movable groove 14, located between the transverse sliding grooves 12. Both ends of the transverse sliding grooves 12 are movably connected to traction seats 15 by bolts. A rotating shaft 16 is rotatably installed inside the traction seat 15, with the top end of the rotating shaft 16 passing through the movable groove 14. A pulley 17 is connected to the top end of the rotating shaft 16, and a polishing disc for grinding steel pipes is provided at the bottom end of the rotating shaft 16. A rotating shaft 12 is movably installed inside the inclined groove 13. 8. A tensioning wheel 19 matching the pulley 17 is provided at the top of the rotating shaft 18. A double-drive pulley 21 matching the pulley 17 and tensioning wheel 19 is rotatably provided at the top of the lifting seat 10. A transmission belt 22 is provided on the outer side of the double-drive pulley 21, pulley 17, and tensioning wheel 19. There are two sets of transmission belts 22, symmetrically distributed on the double-drive pulley 21. A U-shaped plate 20 is provided at the end of the lifting seat 10 away from the pulley 17. The U-shaped plate 20 is rotatably connected to the double-drive pulley 21. A servo motor 24 for driving the double-drive pulley 21 to rotate is provided at the top of the U-shaped plate 20. A servo motor 25 for driving the turntable 2 to rotate is provided inside the grinding table 1. When the device is in use, the stepped inner platform 5 is used to place the steel pipe to be polished. The rotating lead screw 7 drives the stepped inner expansion platform 5 to move within the limiting slide groove 3, thereby adapting to steel pipes of different inner diameters, supporting and fixing the inner wall of the steel pipe, and ensuring the stability of the steel pipe during the polishing process. When polishing the inner wall of the steel pipe, the servo motor 24 drives the double drive pulley 21 to rotate. The double drive pulley 21 drives the pulley 17 to rotate through the transmission belt 22, realizing the transmission of power. The two sets of symmetrically distributed transmission belts 22 can improve the stability and reliability of the transmission, thereby driving the rotating shaft 16 and the polishing disc to rotate, realizing the grinding of the inner wall of the steel pipe. When grinding steel pipes of different inner diameters, the operator can change the position of the traction seat 15 along the transverse slide groove 12 according to actual needs, so that the rotating shaft 16 moves along the direction of the movable groove 14.By changing the spacing between the polishing discs, the device becomes more flexible and versatile. The tension wheel 19 can move within the inclined groove 13 along with the rotating shaft 18 to adjust the tension of the transmission belt 22. This ensures that when the positions of the rotating shaft 16 and pulley 17 change, the transmission belt 22 can always stably drive the pulley 17 to rotate. The cylinder 11 drives the lifting seat 10 to rise and fall, and the contact position between the polishing disc and the inner wall of the steel pipe can be adjusted according to the specifications and grinding requirements. The guide rail 9 guides and limits the movement of the lifting seat 10, ensuring that the lifting seat 10 can only rise and fall vertically. The U-shaped plate 20 provides support and rotation space for the dual-drive pulley 21. The servo motor 25 drives the turntable 2 to rotate, thereby driving the steel pipe to rotate, achieving a comprehensive polishing effect on the inner wall of the steel pipe.

[0029] In this embodiment, specifically, the top of the lifting seat 10 is provided with a protective cover 23 for protecting the pulley 17 and the tensioning wheel 19. The protective cover 23 can effectively prevent dust, debris and other objects from entering the transmission components and affecting the transmission efficiency and component life.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] The working principle of this utility model is as follows: the steel pipe is placed on the turntable 2 so that the steel pipe is fitted on the outside of the inner expansion platform 5 of the step. Based on the inner diameter of the steel pipe, the screw 7 is rotated to drive the stepped inner expansion platform 5 to move within the limiting slide groove 3, making the stepped inner expansion platform 5 in close contact with the inner wall of the steel pipe, thus supporting and fixing the steel pipe. The position of the traction seat 15 is changed along the transverse slide groove 12 according to the inner diameter of the steel pipe, thereby changing the spacing between the polishing discs. The position of the tension wheel 19 is then adjusted so that the transmission belt 22 stably drives the pulley 17 to rotate. The cylinder 11 is activated, driving the lifting seat 10 to rise and fall along the guide rail 9, adjusting the contact position between the polishing disc and the inner wall of the steel pipe, so that the polishing disc can accurately polish the inner wall of the steel pipe. The servo motor 24 is activated, driving the double-drive pulley 21 to rotate. The double-drive pulley 21 drives the pulley 17 to rotate via the transmission belt 22, which in turn drives the rotating shaft 16 and the polishing disc to rotate. Simultaneously, the servo motor 25 drives the turntable 2 to rotate, which in turn drives the steel pipe to rotate, thus achieving the polishing of the inner wall of the steel pipe.

[0032] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A steel pipe inner wall polishing device, comprising a polishing table (1), characterized in that: A turntable (2) for placing steel pipes is movably mounted on the surface of the grinding table (1). A support frame (8) is provided on one side of the surface of the grinding table (1). A lifting seat (10) is slidably mounted on one side of the support frame (8). Two sets of transverse sliding grooves (12) and inclined grooves (13) are symmetrically opened on the top end face of the lifting seat (10), and the inclined grooves (13) are located in front of the transverse sliding grooves (12). A movable groove (14) is opened on the top end face of the lifting seat (10), and the movable grooves (14) are located between the transverse sliding grooves (12). The two ends of the transverse sliding grooves (12) are movably connected to a traction seat (15) by bolts. The traction seat (15) is rotatably mounted inside. There is a rotating shaft (16), and the top end of the rotating shaft (16) passes through the movable groove (14). The top end of the rotating shaft (16) is connected to a pulley (17). The interior of the inclined groove (13) is movably provided with a rotating shaft (18). The top end of the rotating shaft (18) is provided with a tensioning wheel (19) that matches the pulley (17). The top of the lifting seat (10) is rotatably provided with a double-drive pulley (21) that matches the pulley (17) and the tensioning wheel (19). The outer sides of the double-drive pulley (21), pulley (17) and tensioning wheel (19) are provided with a transmission belt (22), and the transmission belt (22) consists of two sets, which are symmetrically distributed on the double-drive pulley (21).

2. A device for polishing the inner wall of a steel pipe according to claim 1, characterized in that, The turntable (2) is a hollow frustum, and the bottom end of the rotating shaft (16) is provided with a polishing disc for grinding steel pipes.

3. A device for polishing the inner wall of a steel pipe according to claim 1, characterized in that, The top of the turntable (2) is provided with three sets of equally spaced limiting grooves (3), and a support column (4) is provided in the center of the turntable (2).

4. A device for polishing the inner wall of a steel pipe according to claim 3, characterized in that, The limiting slide groove (3) is provided with a sliding stepped inner expansion platform (5), and the turntable (2) is provided with a support base (6) that matches the limiting slide groove (3) on the outside.

5. The steel pipe inner wall polishing device according to claim 4, characterized in that, The inner side of the mounting base (6) is threaded with a screw rod (7), and one end of the screw rod (7) passes through and is rotatably connected to the inner expansion platform (5) of the step and the limiting slide groove (3). The screw rod (7) and the inner expansion platform (5) of the step are threadedly connected.

6. The apparatus for polishing the inner wall of a steel pipe according to claim 1, wherein One side of the support frame (8) is provided with a guide rail (9) for guiding and limiting the movement of the lifting seat (10).

7. The apparatus for polishing the inner wall of a steel pipe according to claim 1, wherein The top of the support frame (8) is provided with a cylinder (11) for driving the lifting seat (10) to rise and fall.

8. The apparatus for polishing the inner wall of a steel pipe according to claim 1, wherein The lifting seat (10) is provided with a C-shaped plate (20) at one end away from the pulley (17), and the C-shaped plate (20) is rotatably connected to the double drive pulley (21).

9. The apparatus for polishing the inner wall of a steel pipe according to claim 1, wherein The top of the lifting seat (10) is provided with a protective cover (23) for protecting the pulley (17) and the tensioning wheel (19).

10. A device for polishing the inner wall of a steel pipe according to claim 8, characterized by The top of the shaped plate (20) is provided with a servo motor (24) for driving the double drive pulley (21) to rotate, and the inside of the grinding table (1) is provided with a servo motor (25) for driving the turntable (2) to rotate.

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